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| Numerical simulation and design on energy absorption for metal thin-walled structures with double-layered nested style aid local surface nanocrystallization |
| Received:April 04, 2020 Revised:June 02, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20200404001 |
| KeyWord:double-layered nested thin-walled structure local surface nanocrystallization energy absorption device specific energy absorption peak crushing force |
| Author | Institution |
| 赵祯 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 ;香港城市大学 建筑学及土木工程学系, 香港 |
| 王伟 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 廉增博 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 王钧仡 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 仝真真 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 ;大连交通大学 机车车辆工程学院, 大连 |
| 林志华 |
香港城市大学 建筑学及土木工程学系, 香港 |
| 周震寰 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
| 徐新生 |
大连理工大学 工业装备结构分析国家重点实验室, 大连 |
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| Abstract: |
| Based on the local surface nanocrystallization technology,the metal thin-walled structures with a double-layered nested style were designed in this paper.On the basis of the studies on mechanical and material modification effects by surface nanocrystallization,local surface nanocrystallization layouts with varying continuous as well as staggered stripe numbers were optimized,and the design schemes and energy absorption properties were obtained subsequently.The results demonstrate that the material yield limit is significantly improved after the local surface nanocrystallization treatment,the specific energy absorption for the optimal design of the metal thin-walled structure with a double-layered nested style is enhanced by 57.1%,which proves that the local surface nanocrystallization is an effective technology in the design of energy absorption devices. |
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